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s3:rpc_client fix a crash

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state->cli->dc does not have to be set (e.g. when running
net rpc join against an older Samba PDC), so check it before dereferencing it

This fixes Bug 9669 - net rpc join crashes against a Samba 3.0.33 PDC

Bug: https://bugzilla.samba.org/show_bug.cgi?id=9669

Signed-off-by: Christian Ambach <ambi@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

Autobuild-User(master): Christian Ambach <ambi@samba.org>
Autobuild-Date(master): Wed Feb 20 19:00:52 CET 2013 on sn-devel-104
This commit is contained in:
Christian Ambach 2013-02-20 16:59:05 +01:00
parent 2f4b21bb57
commit 3d29bb2d37
1 changed files with 1 additions and 1 deletions
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2
source3/rpc_client/cli_pipe.c
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@ -1805,7 +1805,7 @@ static void rpc_pipe_bind_step_two_done(struct tevent_req *subreq)
status = dcerpc_netr_LogonGetCapabilities_r_recv(subreq, talloc_tos());
TALLOC_FREE(subreq);
if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
if (state->cli->dc->negotiate_flags &
if (state->cli->dc && state->cli->dc->negotiate_flags &
NETLOGON_NEG_SUPPORTS_AES) {
DEBUG(5, ("AES is not supported and the error was %s\n",
nt_errstr(status)));